326 lines
12 KiB
Python
326 lines
12 KiB
Python
#pylint: disable=C0111
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#pylint: disable=W0621
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#EVERY PROBLEM TYPE MUST HAVE THE FOLLOWING:
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# -Section in Dictionary containing:
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# -factory
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# -kwargs
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# -(optional metadata)
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# -Correct, Incorrect and Unanswered CSS selectors
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# -A way to answer the problem correctly and incorrectly
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# -A way to check the problem was answered correctly, incorrectly and blank
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from lettuce import world
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import random
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import textwrap
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from common import section_location
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from capa.tests.response_xml_factory import OptionResponseXMLFactory, \
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ChoiceResponseXMLFactory, MultipleChoiceResponseXMLFactory, \
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StringResponseXMLFactory, NumericalResponseXMLFactory, \
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FormulaResponseXMLFactory, CustomResponseXMLFactory, \
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CodeResponseXMLFactory
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# Factories from capa.tests.response_xml_factory that we will use
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# to generate the problem XML, with the keyword args used to configure
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# the output.
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PROBLEM_DICT = {
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'drop down': {
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'factory': OptionResponseXMLFactory(),
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'kwargs': {
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'question_text': 'The correct answer is Option 2',
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'options': ['Option 1', 'Option 2', 'Option 3', 'Option 4'],
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'correct_option': 'Option 2'},
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'correct': ['span.correct'],
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'incorrect': ['span.incorrect'],
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'unanswered': ['span.unanswered']},
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'multiple choice': {
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'factory': MultipleChoiceResponseXMLFactory(),
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'kwargs': {
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'question_text': 'The correct answer is Choice 3',
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'choices': [False, False, True, False],
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'choice_names': ['choice_0', 'choice_1', 'choice_2', 'choice_3']},
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'correct': ['label.choicegroup_correct', 'span.correct'],
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'incorrect': ['label.choicegroup_incorrect', 'span.incorrect'],
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'unanswered': ['span.unanswered']},
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'checkbox': {
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'factory': ChoiceResponseXMLFactory(),
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'kwargs': {
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'question_text': 'The correct answer is Choices 1 and 3',
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'choice_type': 'checkbox',
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'choices': [True, False, True, False, False],
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'choice_names': ['Choice 1', 'Choice 2', 'Choice 3', 'Choice 4']},
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'correct': ['span.correct'],
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'incorrect': ['span.incorrect'],
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'unanswered': ['span.unanswered']},
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'radio': {
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'factory': ChoiceResponseXMLFactory(),
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'kwargs': {
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'question_text': 'The correct answer is Choice 3',
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'choice_type': 'radio',
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'choices': [False, False, True, False],
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'choice_names': ['Choice 1', 'Choice 2', 'Choice 3', 'Choice 4']},
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'correct': ['label.choicegroup_correct', 'span.correct'],
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'incorrect': ['label.choicegroup_incorrect', 'span.incorrect'],
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'unanswered': ['span.unanswered']},
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'string': {
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'factory': StringResponseXMLFactory(),
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'kwargs': {
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'question_text': 'The answer is "correct string"',
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'case_sensitive': False,
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'answer': 'correct string'},
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'correct': ['div.correct'],
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'incorrect': ['div.incorrect'],
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'unanswered': ['div.unanswered']},
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'numerical': {
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'factory': NumericalResponseXMLFactory(),
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'kwargs': {
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'question_text': 'The answer is pi + 1',
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'answer': '4.14159',
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'tolerance': '0.00001',
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'math_display': True},
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'correct': ['div.correct'],
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'incorrect': ['div.incorrect'],
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'unanswered': ['div.unanswered']},
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'formula': {
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'factory': FormulaResponseXMLFactory(),
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'kwargs': {
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'question_text': 'The solution is [mathjax]x^2+2x+y[/mathjax]',
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'sample_dict': {'x': (-100, 100), 'y': (-100, 100)},
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'num_samples': 10,
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'tolerance': 0.00001,
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'math_display': True,
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'answer': 'x^2+2*x+y'},
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'correct': ['div.correct'],
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'incorrect': ['div.incorrect'],
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'unanswered': ['div.unanswered']},
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'script': {
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'factory': CustomResponseXMLFactory(),
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'kwargs': {
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'question_text': 'Enter two integers that sum to 10.',
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'cfn': 'test_add_to_ten',
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'expect': '10',
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'num_inputs': 2,
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'script': textwrap.dedent("""
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def test_add_to_ten(expect,ans):
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try:
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a1=int(ans[0])
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a2=int(ans[1])
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except ValueError:
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a1=0
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a2=0
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return (a1+a2)==int(expect)
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""")},
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'correct': ['div.correct'],
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'incorrect': ['div.incorrect'],
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'unanswered': ['div.unanswered']},
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'code': {
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'factory': CodeResponseXMLFactory(),
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'kwargs': {
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'question_text': 'Submit code to an external grader',
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'initial_display': 'print "Hello world!"',
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'grader_payload': '{"grader": "ps1/Spring2013/test_grader.py"}', },
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'correct': ['span.correct'],
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'incorrect': ['span.incorrect'],
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'unanswered': ['span.unanswered']}
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}
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def answer_problem(problem_type, correctness):
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if problem_type == "drop down":
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select_name = "input_i4x-edx-model_course-problem-drop_down_2_1"
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option_text = 'Option 2' if correctness == 'correct' else 'Option 3'
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world.browser.select(select_name, option_text)
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elif problem_type == "multiple choice":
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if correctness == 'correct':
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world.css_check(inputfield('multiple choice', choice='choice_2'))
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else:
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world.css_check(inputfield('multiple choice', choice='choice_1'))
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elif problem_type == "checkbox":
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if correctness == 'correct':
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world.css_check(inputfield('checkbox', choice='choice_0'))
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world.css_check(inputfield('checkbox', choice='choice_2'))
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else:
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world.css_check(inputfield('checkbox', choice='choice_3'))
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elif problem_type == 'radio':
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if correctness == 'correct':
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world.css_check(inputfield('radio', choice='choice_2'))
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else:
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world.css_check(inputfield('radio', choice='choice_1'))
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elif problem_type == 'string':
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textvalue = 'correct string' if correctness == 'correct' else 'incorrect'
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world.css_fill(inputfield('string'), textvalue)
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elif problem_type == 'numerical':
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textvalue = "pi + 1" if correctness == 'correct' else str(random.randint(-2, 2))
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world.css_fill(inputfield('numerical'), textvalue)
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elif problem_type == 'formula':
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textvalue = "x^2+2*x+y" if correctness == 'correct' else 'x^2'
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world.css_fill(inputfield('formula'), textvalue)
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elif problem_type == 'script':
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# Correct answer is any two integers that sum to 10
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first_addend = random.randint(-100, 100)
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second_addend = 10 - first_addend
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# If we want an incorrect answer, then change
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# the second addend so they no longer sum to 10
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if correctness == 'incorrect':
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second_addend += random.randint(1, 10)
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world.css_fill(inputfield('script', input_num=1), str(first_addend))
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world.css_fill(inputfield('script', input_num=2), str(second_addend))
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elif problem_type == 'code':
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# The fake xqueue server is configured to respond
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# correct / incorrect no matter what we submit.
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# Furthermore, since the inline code response uses
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# JavaScript to make the code display nicely, it's difficult
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# to programatically input text
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# (there's not <textarea> we can just fill text into)
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# For this reason, we submit the initial code in the response
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# (configured in the problem XML above)
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pass
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def problem_has_answer(problem_type, answer_class):
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if problem_type == "drop down":
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if answer_class == 'blank':
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assert world.browser.is_element_not_present_by_css('option[selected="true"]')
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else:
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actual = world.browser.find_by_css('option[selected="true"]').value
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expected = 'Option 2' if answer_class == 'correct' else 'Option 3'
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assert actual == expected
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elif problem_type == "multiple choice":
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if answer_class == 'correct':
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assert_checked('multiple choice', ['choice_2'])
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elif answer_class == 'incorrect':
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assert_checked('multiple choice', ['choice_1'])
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else:
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assert_checked('multiple choice', [])
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elif problem_type == "checkbox":
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if answer_class == 'correct':
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assert_checked('checkbox', ['choice_0', 'choice_2'])
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elif answer_class == 'incorrect':
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assert_checked('checkbox', ['choice_3'])
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else:
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assert_checked('checkbox', [])
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elif problem_type == "radio":
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if answer_class == 'correct':
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assert_checked('radio', ['choice_2'])
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elif answer_class == 'incorrect':
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assert_checked('radio', ['choice_1'])
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else:
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assert_checked('radio', [])
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elif problem_type == 'string':
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if answer_class == 'blank':
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expected = ''
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else:
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expected = 'correct string' if answer_class == 'correct' else 'incorrect'
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assert_textfield('string', expected)
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elif problem_type == 'formula':
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if answer_class == 'blank':
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expected = ''
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else:
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expected = "x^2+2*x+y" if answer_class == 'correct' else 'x^2'
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assert_textfield('formula', expected)
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else:
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# The other response types use random data,
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# which would be difficult to check
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# We trade input value coverage in the other tests for
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# input type coverage in this test.
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pass
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##############################
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# HELPER METHODS
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##############################
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def add_problem_to_course(course, problem_type, extraMeta=None):
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'''
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Add a problem to the course we have created using factories.
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'''
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assert(problem_type in PROBLEM_DICT)
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# Generate the problem XML using capa.tests.response_xml_factory
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factory_dict = PROBLEM_DICT[problem_type]
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problem_xml = factory_dict['factory'].build_xml(**factory_dict['kwargs'])
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metadata = {'rerandomize': 'always'} if not 'metadata' in factory_dict else factory_dict['metadata']
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if extraMeta:
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metadata = dict(metadata, **extraMeta)
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# Create a problem item using our generated XML
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# We set rerandomize=always in the metadata so that the "Reset" button
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# will appear.
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template_name = "i4x://edx/templates/problem/Blank_Common_Problem"
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world.ItemFactory.create(parent_location=section_location(course),
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template=template_name,
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display_name=str(problem_type),
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data=problem_xml,
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metadata=metadata)
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def inputfield(problem_type, choice=None, input_num=1):
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""" Return the css selector for `problem_type`.
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For example, if problem_type is 'string', return
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the text field for the string problem in the test course.
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`choice` is the name of the checkbox input in a group
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of checkboxes. """
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sel = ("input#input_i4x-edx-model_course-problem-%s_2_%s" %
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(problem_type.replace(" ", "_"), str(input_num)))
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if choice is not None:
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base = "_choice_" if problem_type == "multiple choice" else "_"
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sel = sel + base + str(choice)
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# If the input element doesn't exist, fail immediately
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assert world.is_css_present(sel)
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# Retrieve the input element
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return sel
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def assert_checked(problem_type, choices):
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'''
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Assert that choice names given in *choices* are the only
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ones checked.
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Works for both radio and checkbox problems
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'''
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all_choices = ['choice_0', 'choice_1', 'choice_2', 'choice_3']
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for this_choice in all_choices:
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element = world.css_find(inputfield(problem_type, choice=this_choice))
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if this_choice in choices:
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assert element.checked
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else:
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assert not element.checked
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def assert_textfield(problem_type, expected_text, input_num=1):
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element = world.css_find(inputfield(problem_type, input_num=input_num))
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assert element.value == expected_text
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